The sciatic nerve is the travel area that emanates from the lumbar spine and passes through the buttocks, from the knee joint down to the heel of the foot. A clinical sciatic nerve injury, such as pear-shaped muscle syndrome or lumbar disc herniation, will produce the typical symptoms of pain and numbness from the hip to the calf. Symptoms should be seen in a hospital orthopedic department for a lumbar spine CT scan or related investigations to determine what disease is causing the problem. If you have problems, you should rest in bed, avoid bending, sitting and standing for a long time, and use topical ointment to activate blood circulation and relieve pain, together with acupuncture, massage and physiotherapy, and you can take oral treatment with methylcobalamin or Mai Zhi Ling. Normally, you can hang a bar, or lie on the bed, do the swallow fly back muscle rehabilitation exercise.